Find out the latest information on sunspot regions, their number, size, class, location and flare probabilities. See daily and hourly updates on solar activity and images of sunspots from SDO and SWPC.

Sunspots are dark regions on the sun's surface caused by strong magnetic fields. Learn how they form, how they vary with the solar cycle, and how to observe them.

Learn about sunspots, dark areas on the Sun's surface caused by strong magnetic fields, and solar flares, sudden explosions of energy. Find out how solar activity can affect Earth and see images of the Sun's surface.

Age spots are small, flat dark areas on the skin caused by overactive pigment cells and sun exposure. Learn about their symptoms, causes, risk factors and how to prevent them with sun protection tips.

Sunspots are dark spots on the Sun's surface caused by magnetic fields that inhibit convection. Learn about their history, physics, morphology, lifecycle, solar cycle, trends, application and observation methods.

Learn about sunspots, dark areas on the Sun's surface caused by intense magnetic fields, and their relation to the solar cycle. Find out how sunspots affect space weather, radio communications, and satellite systems.

Sunspots are flat brown spots that develop on the skin after sun exposure. Learn about the causes, treatments, and prevention of sunspots on your face with home remedies, creams, and professional procedures.

Sunspots are cooler regions on the Sun caused by magnetic field lines that prevent heat from flowing to the surface. Learn how NASA tracks sunspots to understand the solar cycle and its effects on Earth and space.

Sunspots are dark marks on the skin caused by UV exposure, but not skin cancer. Learn how to identify, treat and prevent sunspots with dermatologists' advice and tips.